Hayati, H.S. , Astuti, P. and Febrian , F. 2022. Electronic Student Worksheets Based on Rigorous Mathematical Thinking for Sequence and Series Materials in Senior High School. Jurnal Gantang. 7, 2 (Dec. 2022), 185–196. DOI:https://doi.org/10.31629/jg.v7i2.5331.